[cdt-dev] Need help with TextEditor undo

[Jeff Johnston <jjohnstn@xxxxxxxxxx>]

I have an editor which extends TextEditor.  The default undo support 
works reasonably well, however it doesn't seem to recognize that a file 
has "undone' itself to original status.  The dirty bit is still on and 
the user gets asked when the file gets closed if he/she wants to save 
the changes to the file.

Is this expected behavior or a known bug?  Is there another undo manager 
I should use?  Thoughts welcome.

-- Jeff J.